The superlative qualities of the quantum realm are yet to be defined; including as they do Uniqueness and Entanglement, therein being the classic juxtaposition of One versus All, for we do not know to what extent we are subject to entanglement as it's not a measurable commodity in the real world, but we do know that we are all unique. Our uniqueness is something we take for granted unless we're placing ourselves in the well of humanity and bemoaning it as we are wont to do.
Our separation within the Supersystem carves out for us an illusion of grandeur, an unfortunate trait that has led to where we are now, on a planet suffering the consequences. Supermarkets buy into the system no matter what you choose to buy from them. They sell a lot of tuna. Most of us buy milk. Coffee. Palm oil - who checks the ingredients? Lives don't matter here. No wonder we are fraught with fears of loss on a promise of infinite nothingness. What have we to look forward to, when things are unlikely to change? These relationships of ours, where are they going, when neither can see a way to put right what is so often determined to be wrong? You're more than likely asking now what the hell that has to do with quantum mechanics.